baber/WOPTO huggingface dataset:
Patent WO-2020124303-A1 (WO)
Inventor: ZHANG JUNLUN
IPC: H04L47/30
Filed: 2018-12-17
Abstract: A method for data packet delay management in a communications network connecting a sender node over an eCPRI interface to a receive node. The method performed at the receiver node receiving data packets from the sender node comprises monitoring (102) a buffer level at a buffer receiving data from the sender node. When the buffer level reaches a threshold (104-Yes) the method further comprises transmitting (108) to the sender node over the eCPRI interface at least one message comprising information indicative of length of time of a Medium Access Control, MAC, flow control and transmitting (114) at least one MAC flow control frame to the sender node with a delay (110,112).
Patent WO-2020062624-A1 (WO)
Title: 一种消防机器人的协同工作方法及系统
Inventor: TANG FEI
IPC: B25J11/00
Filed: 2018-12-19
Abstract: 一种消防机器人的协同工作方法及系统，所述方法，包括以下步骤：1)运载机器人（202）通过对接锁定机构（203）与侦察机器人（201）进行对接锁定后，将侦察机器人（201）运载到指定位置；2)侦察机器人（201）从运载机器人（202）解锁后驶离，并进入高温环境进行作业；一种消防机器人的协同工作系统能够使得侦察机器人（201）快速到达并深入到高温火灾现场，并在火灾现场稳定高效工作，实现了消防机器人的快速部署。
Patent WO-2020000937-A1 (WO)
Title: 扬声器及扬声器模组
Inventor: LI CHANGLONG
IPC: H04R9/02
Filed: 2018-12-21
Abstract: 本发明实施例涉及一种扬声器及扬声器模组。扬声器，包括：振动系统以及与振动系统配合在一起的磁路系统；所述振动系统包括振膜以及结合于振膜上的音圈；所述振膜的前侧与前音腔盖之间的空间形成前音腔，所述振膜的背侧与后音腔盖之间的空间形成后音腔，其中，还包括多个沿所述振膜的振动方向设置的注塑嵌件，所述注塑嵌件包括相对设置的第一端和第二端，所述第一端与所述前音腔盖的靠近所述振膜的一面相接合，所述第二端与所述后音腔盖的靠近所述振膜的一面相接合。本发明实施例所要解决的一个技术问题是使用注塑嵌件保证外壳的振膜连接面相对于前音腔支撑面及后音腔支撑面的相对距离及平行度的稳定性，从而确保扬声器的声学性能的稳定。
Patent WO-2020107604-A1 (WO)
Inventor: YANG ZONGXU
IPC: H04R5/02
Filed: 2018-12-26
Abstract: Disclosed in the present invention are a wireless playback device, a head-mounted wireless headset system, a playback control method and apparatus of a wireless playback device, and a computer readable storage medium, relating to the technical field of portable listening devices. Said device comprises: a housing and a headband detection device, a processor, a PA operational amplification device and a loudspeaker which are provided in the housing; the headband detection device is configured to acquire connectivity data of a headband device and the housing; the processor is connected to the headband detection device and is configured to control the PA operational amplification device according to the connectivity data, and adjust the operation power mode of the loudspeaker; and the PA operational amplification device is connected to the processor and the loudspeaker. By detachably connecting the housings of two wireless playback devices to the headband device, the present invention enables a user to use the wireless playback devices to a product similar to a conventional headset, and realizes automatic switching between a headset function and a small sound box function of the wireless playback devices, improving user experience.
Patent WO-2019129189-A1 (WO)
Title: 刷牙数据的处理方法、刷牙监控系统、存储设备、刷牙检测装置、牙刷基座、牙刷
Inventor: ZHENG HONG
IPC: A46B15/00
Filed: 2018-12-28
Abstract: 一种能满足现有技术中用户的补刷需求的刷牙数据的处理方法、刷牙监控系统、存储设备、刷牙检测装置、牙刷基座（100）、牙刷。采用的技术方案是：一种刷牙数据的处理方法，包括：a、检测用户刷牙动作行为直到刷牙过程结束，得到第一行为数据；b、对第一行为数据进行解析，得出第一刷牙结果；c、告知用户第一刷牙结果；d、确认是否进入补刷步骤，若进入则在后续预设时间内检测用户的刷牙动作行为，得到第二行为数据；e、将第一行为数据和第二行为数据进行叠加得到综合数据；f、对综合数据进行解析，得出综合结果；g、告知用户该综合结果。
Patent WO-2020142925-A1 (WO)
Title: Procédé et appareil pour envoyer et recevoir des informations de commande de liaison montante
Inventor: ZHANG GUOYU
IPC: H04W72/04
Filed: 2019-01-09
Abstract: Selon des modes de réalisation, l'invention concerne un procédé et un appareil permettant d'envoyer et de recevoir des informations de commande de liaison montante. Le procédé comprend les étapes suivantes : un dispositif terminal détermine un type d'accès au canal d'un canal de commande de liaison montante utilisé pour envoyer un canal de commande de liaison montante ; et, sur la base du type d'accès au canal, met en œuvre une détection de canal et, après avoir détecté que le canal est au repos, envoie les informations de commande de liaison montante à un dispositif réseau ou, sur la base du type d'accès au canal, envoie les informations de commande de liaison montante au dispositif de réseau sans mettre en œuvre une détection de canal. Ainsi, dans certains scénarios, les informations de commande de liaison montante peuvent être envoyées sans mettre en œuvre une détection de canal, réduisant la latence de transmission et augmentant l'efficacité de transmission ; dans d'autres scénarios, les informations de commande de liaison montante sont envoyées après avoir détecté que le canal est au repos, empêchant ou réduisant l'interférence et augmentant la fiabilité de transmission.
Patent WO-2019141254-A1 (WO)
Inventor: XIA MINGYU
IPC: A61P3/10
Filed: 2019-01-18
Abstract: L'invention concerne un inhibiteur de mTOR, une composition pharmaceutique et son utilisation. L'inhibiteur de mTOR comprend l'un parmi la kélimycine, l'isovalérylspiramycine I, l'isovalérylspiramycine II et l'isovalérylspiramycine III, ou une combinaison de deux ou trois de l'isovalérylspiramycine I, de l'isovalérylspiramycine II et de l'isovalérylspiramycine III. La composition pharmaceutique associée peut également comprendre un médicament pour traiter et/ou prévenir des maladies associées à une voie mTOR en tant que second ingrédient actif. L'inhibiteur de mTOR présente un effet inhibiteur évident sur des cellules ayant des maladies associées à une voie mTOR, et est utilisé pour préparer des médicaments pour traiter et/ou prévenir des maladies associées à la voie mTOR.
Patent WO-2020062736-A1 (WO)
Inventor: JIN HAIYONG
IPC: H01H35/36
Filed: 2019-01-22
Abstract: A high-precision gas density relay, comprising a gas density relay housing, a base, an end seat, a Bourdon tube, a temperature compensation element, a signal regulation mechanism, and a plurality of microswitches, the microswitches being push button microswitches. The density relay further comprises microswitch contact trigger elements made of elastic material. One end of each microswitch contact trigger element is fixed inside the housing, and the other end is arranged corresponding to a push button of a push button microswitch, abutting the push button of each push button microswitch with one to one correspondence. When the value of the density of a gas changes, the Bourdon tube and the temperature compensation element are displaced, said displacement sequentially driving the microswitch contact trigger elements by means of the signal trigger mechanism. The positions of the microswitch contact trigger elements change, causing the microswitches to generate a corresponding signal, completing the function of the gas density relay. The present invention features high precision and excellent contact conductivity, and can be applied in SF 6  electrical devices.
Patent WO-2019144959-A1 (WO)
Title: Vertical indoor air-conditioning unit
Inventor: WANG YONGTAO
IPC: F24F13/00
Filed: 2019-01-28
Abstract: A vertical indoor air-conditioning unit, comprising two groups of air supply systems. Each group of air supply systems comprises a rotational volute. When a first rotational volute (410) is rotated to an outlet thereof to be communicated with a first air outlet (101), and a second rotational volute (420) is rotated to an outlet thereof to be communicated with a second air outlet (102), indoor units (310, 320) can supply air forwards. When a first rotational volute (410) is rotated to an outlet thereof to be communicated with a third air outlet (103), and a second rotational volute (420) is rotated to an outlet thereof to be communicated with a fourth air outlet (104), indoor units (310, 320) can supply air laterally.
Patent WO-2019149242-A1 (WO)
Title: Method and apparatus for wireless communication in base station and user equipment
Inventor: CHEN JINHUI
IPC: H04W72/04
Filed: 2019-01-31
Abstract: Disclosed are a method and apparatus for wireless communication in a base station and a user equipment. The method comprises: the user equipment receives a first control signal, the first control signal indicating a target time-frequency resource and a first spatial parameter group used for sending the first wireless signal; execute first type of energy detection by using a target spatial parameter group; determine, according to the result of the first type of energy detection and the comparison result of a target threshold, whether the first wireless signal can be sent on the target time-frequency resource, wherein the target threshold is associated with the target spatial parameter group, the target threshold is greater than or equal to a first reference threshold, and the first reference threshold is associated with the first spatial parameter group. The present application can avoid interference of uplink transmission to the ongoing transmission in other directions, improve the performance of oriented transmission, and increase system flexibility.
Patent WO-2020168547-A1 (WO)
Title: Paper quantity detection method and paper quantity detection apparatus
Inventor: LI HE
IPC: G06M7/06
Filed: 2019-02-22
Abstract: A paper quantity detection method, comprising the following steps: stacking a plurality of sheets of paper (30) on a bracket (10) and making the stacked set of paper sheets have a stepped part (S101); using a light emitter (21) to emit light rays toward the stepped part along the stacking direction of the sheets of paper (30) (S102); using a light receiver (22) to receive the emitted light rays (S103); and, on the basis of the light rays received by the light receiver (22), calculating the quantity of sheets of paper (30) (S104). Also disclosed is a paper quantity detection apparatus. The measurement process is not affected by the material of the sheets of paper (30) or the material of other components, or by electrical signal interference, and measurement is stable.
Patent WO-2020191643-A1 (WO)
Inventor: BUI KATHY
IPC: G06F3/01
Filed: 2019-03-27
Abstract: L'invention concerne un appareil d'affichage à panneau intelligent et des procédés associés. Un appareil pour commander un affichage d'un dispositif électronique comprend un détecteur de présence d'utilisateur pour déterminer la présence d'un utilisateur par rapport au dispositif sur la base de données d'image générées par un capteur d'image du dispositif. L'appareil comprend un détecteur de regard pour déterminer une direction d'un regard de l'utilisateur par rapport au capteur d'image sur la base des données d'image. L'appareil comprend un gestionnaire de rétroéclairage pour ajuster sélectivement une luminosité d'affichage sur la base de la présence de l'utilisateur et de la direction du regard de l'utilisateur.
Patent WO-2020177185-A1 (WO)
Inventor: XIN ZHAOLIANG
IPC: B65F5/00
Filed: 2019-04-16
Abstract: 一种生活垃圾的移动分类工厂，包括移动动力装置（1）以及设置在移动动力装置（1）后端的工厂本体（2），本体（2）为中空壳体结构；所述工厂本体（2）后端上部设有垃圾进口（3），垃圾进口（3）下方设有膜式物捡拾装置，膜式物捡拾装置设置在工厂本体（2）内，膜式物捡拾装置的工作流程后设有膜式物清洗分离装置，膜式物清洗分离装置上方设有膜式物卸载装置，膜式物捡拾装置下方设置垃圾破碎装置和三相分离装置，在膜式物清洗分离装置和三相分离装置的工作流程后设有打包及分存系统。该移动分类工厂设计独特、结构紧凑及垃圾分类和收集效率高、质量优，使城乡社区现场快速生活垃圾分类功能突出的新型设施，有助于解决城市生活垃圾分类、填埋和焚烧的难题。
Patent WO-2020220336-A1 (WO)
Inventor: YU XIAOBIN
IPC: B25J11/00
Filed: 2019-04-30
Abstract: Provided is a mobile robot, comprising a robot body (1), a gimbal assembly, a shooting device (3) and a pellet supply mechanism (4). The gimbal assembly is arranged on the robot body (1), the shooting device (3) is arranged on the gimbal assembly, and the pellet supply mechanism (4) of the mobile robot has a first pellet supply state and a second pellet supply state. In the first pellet supply state, the pellet supply mechanism (4) is detachably mounted on the robot body (1), and pellets in the pellet supply mechanism (4) are transferred to the shooting device (3) via the gimbal assembly; and in the second pellet supply state, the pellet supply mechanism (4) is detachably mounted on an end part of the shooting device (3), and the pellets in the pellet supply mechanism (4) are directly transferred to the shooting device (3). The mobile robot is simple to assemble and has good flexibility.
Patent WO-2019238018-A1 (WO)
Title: Method, device and system for focusing on speech of single sound source
Inventor: SU JIN
IPC: G10L15/26
Filed: 2019-06-11
Abstract: The present invention relates to the technical field of augmented reality. A method, device and system for focusing on speech of a single sound source. The method comprises: receiving speech from one or more sound sources (S10); on the basis of the speech received from each sound source of the one or more sound sources, determining the direction of each sound source of the one or more sound sources (S11); receiving a selection made to one of the one or more sound sources on the basis of the direction of the one or more sound sources (S12); and displaying information corresponding to the selected sound source (S13), wherein the information corresponding to the selected sound source comprises texts converted from the speech received from the selected sound source. The device comprises a speech receiving module (1), a determination module (2), a sound source selecting module (3) and a display module (4). The system comprises the above-described device. The present invention enables a hearing-impaired person to understand the speech content of others in a timely manner and enables them to focus on a specific sound source, thus improving communication efficiency and life convenience thereof.
Patent WO-2019242614-A1 (WO)
Title: 一种动态调整蓄电池放电模式的方法及太阳能照明系统
Inventor: WEN WEI
IPC: H02J7/35
Filed: 2019-06-18
Abstract: 本发明提供了一种动态调整蓄电池放电模式的方法及太阳能照明系统，应用于太阳能照明系统，所述太阳能照明系统包括太阳能板、蓄电池、控制器以及照明用灯；所述方法包括：所述控制器检测所述蓄电池的当天充电电荷或指定时间周期内的平均充电电荷；基于所述蓄电池当天充电电荷或指定时间周期内的平均充电电荷计算所述蓄电池在当天黑夜的放电电荷；使所述蓄电池在当天黑夜的放电电荷正比于所述当天充电电荷或平均充电电荷；调整所述蓄电池在当天黑夜的放电参数，使所述蓄电池以计算出的放电电荷向所述照明用灯供电以实现系统照明。基于本发明提供的方法可减少甚至避免蓄电池过放，进而延长电池使用寿命。
Patent WO-2020042798-A1 (WO)
Title: 密码运算、创建工作密钥的方法、密码服务平台及设备
Inventor: XIAO SHUTING
IPC: H04L9/08
Filed: 2019-07-17
Abstract: 本说明书提供一种密码运算、创建工作密钥的方法、密码服务平台及设备，密码服务平台所连接的密码模块中，密钥管理功能由主密码模块提供，主密码模块用于生成密钥，主密码模块和次密码模块都可提供密码服务平台所需要的密码运算功能。各个密码模块各自独立生成自身的主密钥，业务系统的工作密钥则由主密码模块生成，密码服务平台保存有主密码模块的主密钥加密的工作密钥密文，以及各个次密码模块的主密钥分别加密的工作密钥密文。作为敏感安全参数的主密钥、工作密钥明文均不会超出密码模块的边界，不会损失密钥的安全性，满足密钥的安全性要求。密码服务平台可调用任一密码模块响应业务系统的密码运算请求，密码服务平台能够兼容多种密码模块。
Patent WO-2020029977-A1 (WO)
Title: Transmission resource sharing
Inventor: SALIM UMER
IPC: H04W74/08
Filed: 2019-08-06
Abstract: Methods for sharing resource utilisation information between base stations to facilitate resource sharing. A first base station, when winning access to transmission resources, transmits an indication of those resources to neighbouring base stations. Those neighbouring base stations may then share the resources if there is no conflict with other devices.
Patent WO-2020088052-A1 (WO)
Inventor: WANG HUAPING
IPC: H02K11/215
Filed: 2019-08-21
Abstract: An electromagnetic drive motor (11), comprising a motor stator and a motor rotor (5). A housing (8) of the motor rotor (5) is sleeved on a stator iron core (1) of the motor stator where a stator winding (2) is wrapped. A through hole (101) is provided in the center of the stator iron core (1) in an axial direction thereof. A rotary steering drilling tool, comprising a rotary housing (9), a mud pipeline (10), the electromagnetic drive motor (11), a biasing mechanism (12), a torque transfer mechanism (13), a drill bit transmission mechanism (14), and a drill bit. The motor rotor (5) of the electromagnetic drive motor is connected to the biasing mechanism (12), and is used for driving the biasing mechanism (12) to rotate synchronously. The through hole (101) on the motor stator of the electromagnetic drive motor is disposed on the mud pipeline (10). The mud pipeline (10) allows the mud to flow in the drilling tool. The motor stator is fixed on an outer surface of the mud pipeline (10), a mud passage required for drilling is provided, and the motor rotor (5) provided outside the motor stator is connected to the biasing mechanism (12) so as to provide a larger torque and achieve the whipstocking function of the drilling tool.
Patent WO-2020063376-A1 (WO)
Inventor: TAN JIFENG
IPC: G02F1/1335
Filed: 2019-09-16
Abstract: A display device and a control method for the same. The display device comprises: a light guide plate (100) having a light entering side and a bottom surface and a light exiting surface disposed oppositely; a light extraction structure (200) disposed at a side of the light exiting surface or the bottom surface of the light guide plate (100), such that light having undergone total internal reflection within the light guide plate (100) is emitted from the light exiting surface of the light guide plate (100) at a pre-determined angle; a first low refractive index layer (300) covering the light exiting surface of the light guide plate (100), the refractive index of the light guide plate (100) being greater than the refractive index of the first first low refractive index layer (300); a liquid crystal dimming layer (400) comprising a liquid crystal layer (401) and a drive electrode (402) driving rotation of liquid crystal molecules in the liquid crystal layer (401), the liquid crystal dimming layer (400) being disposed at the side of the first low refractive index layer (300) away from the light exiting surface; and a second low refractive index layer (500) disposed at the side of the liquid crystal dimming layer (400) away from the first low refractive index layer (300), wherein refractive indices of both the first low refractive index layer (300) and the second low refractive index layer (400) are less than an initial refractive index of the liquid crystal dimming layer (400).
Patent WO-2020073783-A1 (WO)
Inventor: LIU JIXIANG
IPC: C08G73/02
Filed: 2019-09-19
Abstract: La présente invention concerne un matériau textile antimicrobien et son procédé de préparation. Un mélange maître antimicrobien de celui-ci est formé par polymérisation d'un polyol et d'un sel de guanadine, et présente la structure : (I). L'utilisation d'un polyol non toxique et non irritant en tant que matière première dans le procédé de préparation du mélange maître antimicrobien est respectueuse de l'environnement et du corps humain.
Patent WO-2021056137-A1 (WO)
Title: Chiral plasmon nanostructure and use thereof in circularly polarized luminescence system
Inventor: CHEN JIAQI
IPC: B82Y30/00
Filed: 2019-09-23
Abstract: Disclosed are a chiral plasmon nanostructure and the use thereof in a circularly polarized luminescence system. The chiral plasmon nanostructure is a precious metal nanorod, the long axis surface of which is coated with a precious metal shell layer helically arranged in a single direction. By modifying the surface of the precious metal nanorod with a chiral thiol group molecule, an optically active chiral plasmon nanostructure is produced in a "from bottom to top" manner. The structure, a method for synthesizing this structure and a constructed application system are all new breakthroughs in the fields of nanostructures, methods for the regulated growth thereof, and circularly polarized luminescence. The present preparation method is capable of very efficiently preparing a chiral plasmon nanostructure, the yield and cost thereof can both be controlled, and the resulting chiral plasmon nanostructure has an exceptionally stable and clear microstructure, wherein the asymmetric g factor can reach ±0.04.
Patent WO-2020063677-A1 (WO)
Title: 通信方法和装置
Inventor: LOU CHONG
IPC: H04W72/12
Filed: 2019-09-25
Abstract: 本申请提供了一种通信方法和装置，为处理上行资源冲突提供了一种解决方案。该方法包括：终端设备获取第一上行资源，第一上行资源用于发送第一业务；终端设备获取第二上行资源，第二上行资源用于发送第二业务，第一上行资源和第二上行资源在时域上全部或部分重叠；终端设备确定在重叠时域上使用的目标上行资源，目标上行资源为第一上行资源或第二上行资源；终端设备在重叠时域上利用目标上行资源发送数据。
Patent WO-2020063973-A1 (WO)
Inventor: YANG JIANJUN
IPC: H04L29/06
Filed: 2019-09-29
Abstract: Disclosed are an IP-based method, apparatus and system for narrow-band service sound playing, and a storage medium, falling within the technical field of communications. The method comprises: a mobile switching centre (MSC) transmitting, in a transparent manner and by means of a signalling interface module (SIU), a narrow-band call request to a narrow-band service module of a service control point (SCP); the MSC receiving and analyzing an ETC message of sound playing auxiliary routing returned by the SCP; when the ETC message carries information meeting IP-based narrow-band sound playing, the MSC converting the ETC message into a session initiation protocol (SIP) request message; the MSC directly sending the SIP request message to a broadband service module of the SCP; and the broadband service module establishing, according to the SIP request message, an association relationship with the narrow-band service module of the SCP and controlling a media play service to play a sound by means of a broadband protocol adaptation module of the SCP.
Patent WO-2021035914-A1 (WO)
Inventor: LI LONGKAI
IPC: H05K3/46
Filed: 2019-10-23
Abstract: 一种多层柔性线路板的制作方法以及实施上述方法制作出的多层柔性线路板，所述制作方法包括以下步骤：制作双面FPC柔性板（1）；制作新型材料层结构（2,3）；在双面FPC柔性板（1）上表面和/或下表面的线路上热压上至少一组新型材料层结构（2,3）；在最外层新型材料层结构（2,3）的线路上和/或双面FPC柔性板（1）外露的线路上成型保护层（4），获得多层柔性线路板。上述制作方法工序简化、方便，生产效率高；制作出的多层柔性线路板不但大幅简化了新型材料层结构（2,3），减薄了整体厚度，而且具有高速传输高频信号的功能，特别适用于新型5G科技产品；对线路与线路之间通电时的铜离子迁移现象具有防护及抵抗作用，保证线路安全正常工作。
Patent WO-2020134473-A1 (WO)
Inventor: XIA XIAOYUE
IPC: H01Q1/24
Filed: 2019-10-25
Abstract: 本发明提供了一种封装天线系统及移动终端。所述移动终端包括屏幕、盖合于所述屏幕并与其配合形成收容空间的后盖及夹设于所述屏幕和所述后盖之间的主板，所述封装天线系统包括设于所述屏幕和所述后盖之间的基板及设于所述基板远离所述主板的一侧的金属天线所述金属天线包括堆叠设置的第一天线和第二天线，且所述第一天线设置于所述第二天线远离所述主板的一侧，所述第一天线的波束覆盖Y>0的空间；所述第二天线的波束覆盖Z>0的空间。本发明提供的封装天线系统实现了28GHz和39GHz的双频覆盖，同时，尺寸减小为22*6mm，所占面积大幅减小，并且增益降低小。
Patent WO-2020103709-A1 (WO)
Title: Commutateur d'émission-réception
Inventor: GROENEWOLD GERRIT
IPC: H04B1/40
Filed: 2019-11-08
Abstract: L'invention concerne une technologie destinée à des commutateurs d'émission-réception permettant à un dispositif de communication sans fil, tel qu'un téléphone cellulaire ou une station de base, de partager la même antenne entre la circuiterie de réception et la circuiterie d'émission du dispositif de communication. Le commutateur comprend un ensemble de transistors qui peuvent être configurés pour fonctionner soit dans un mode de transmission soit dans un mode de réception. Dans le mode de réception, l'antenne est connectée au commutateur configuré sous la forme d'un amplificateur à faible bruit dont la sortie traverse les canaux des transistors. Dans le mode de transmission, des entrées d'amplificateur de puissance sont appliquées aux grilles des transistors.
Patent WO-2020103767-A1 (WO)
Title: Method for calculating and determining optimal dirt removal period for water-cooled electric motor
Inventor: QIU BAOYUN
IPC: G06Q10/06
Filed: 2019-11-15
Abstract: Disclosed is a method for calculating and determining an optimal dirt removal period for a water-cooled electric motor, belonging to the technical field of industrial energy saving and safety. The method comprises calculating, by actual measurement, the amount of heat generation and the heat transfer performance of an electric motor; calculating actual dirt thickness, overall thermal resistance and an overall heat transfer coefficient of the electric motor; calculating a minimum cooling water flow required by the electric motor at different water inlet temperatures in each month by controlling an electric motor winding temperature and a cooling water outlet temperature and taking the accumulation of dirt thickness on a cooling chamber wall into consideration; calculating cooling water system energy consumption in each month according to the required minimum cooling water flow in a dirt formation state; and calculating cooling water system energy consumption cost, dirt removal chemical cost, labor cost and startup and shutdown cost, and with the least average total cost of cooling water system operation and dirt removal of the electric motor per unit time (year) as the goal, a programmed computer solving and determining an optimal dirt removal period. The research results provide a scientific and rational basis for the determination of the dirt removal period for a cooling chamber of the water-cooled electric motor, saving on costs.